Slap it down.
Hang the Jack.

Yes, the whole game is free: every mode, every bot level and online play with friends. When you want to stand out, the Seasonal Premium Pass unlocks exclusive celebrations, card backs, card play effects, animated avatars, frames and new locations to play that free players can't get, plus thousands of coins and no ads. Every look is cosmetic, so nobody can pay to win a hand.

Trinidad rules: play and the deal go to the right (anticlockwise), so the player on the dealer's right begs first, while the player on the dealer's left cuts the pack. Kicks score Jack 3, Six 2 and Ace 1, Hang Jack scores 3, and the first team to 14 wins. A Tobago option is included.

There are five levels, from Easy to Legend. The bots read the cards that have been played, follow your partner signs and learn from every game you play. Beat them and they dig in. Keep beating one and it works harder to beat you. Each one has its own personality and plenty to say at the table.

Not to play against the computer. The full game works offline. Online tables, friends, clubs, ranked leagues and tournaments need a connection.

Each month brings a new Trini-themed season with a free reward track and a premium track. The Premium Pass unlocks the premium track for that season: fifteen exclusives that get better at every tier, including three celebrations (the last a gold Legendary one), three card backs up to a holographic one, card play effects that burst every time you play, animated avatars, gold and crown frames, and the season's location by night. Plus 6,950 coins, three streak freezes and a three-tier head start.

While your pass is active you play with no ads, collect 25 bonus coins with every daily reward, and get the VIP black-and-gold card back, VIP lounge table and Premium frame. Your celebration and avatar show for everyone at the table.

No. It's a one-off purchase of US$4.99 for the current season and never renews on its own. Everything you unlock is yours to keep after the season ends.

A few, and never in the middle of a hand. Free players may see a short ad between games, at most once every three games. In the lobby you can also choose to watch an ad for 30 bonus coins, up to five times a day. The Premium Pass switches off the ads between games for the whole season.

Never. Cards are shuffled securely on our server for online games and everyone plays by the same rules. Purchases are cosmetic and for convenience only.

Coins buy avatars, frames, card backs, tables and sign packs in the store, and the buy-in at higher-stakes venues, where the winners split the pot. You earn them from daily rewards, chests, wins, challenges and the season pass.

Create a private table and share the code or a WhatsApp link. Your friends join with the code, you pick partners, and empty seats can be filled by the computer.

Online wins earn league points. Each week you play in a group of 30: the top five move up a division and rewards arrive on Monday. The divisions are Bronze, Silver, Gold, Steelpan and Legend. You need at least three games in a week to move up.

Every table has quick phrases, emoji and secret partner signs. Typed chat is only available at private tables among friends, and bad language and contact details are filtered out. You can mute or report any player from their seat.

Card Master All Fours is for players aged 16 and over. We ask for your year of birth when you first open the game.

No. Open the game and play straight away as a guest. You get your own Player ID right away, so friends can find you, and your progress stays on that device.

Not if you save it. The easiest way is to create a free account with Google, Apple or email from the Account screen. Your level, coins, pass progress and unlocks then follow you to any phone, tablet or the web, and nothing is lost when you switch.

Every guest has a secret recovery code under Account, Recovery code. Write it down or save it somewhere safe. On the new phone, open Account, enter the code under "Played before on another phone?" and your progress moves across. Lost the code? Email info@kpdigitaltt.com with your Player ID or name and roughly when you last played, and we'll help once we've confirmed it's you.

Go to Settings, scroll to Danger zone at the bottom and tap Delete my account. Your profile, progress, friends list and sign-in are permanently removed from our servers.

Very soon on Google Play, followed by the App Store. Until then it plays in your phone's browser. Add it to your home screen for the full-screen experience.